Справочник Пользователя для GE PT878GC
April 2004
4-44
Programming Site Data
Entering the Digital Output (cont.)
d. The prompt then moves to a list of unit types. (The
available units depend on the selection made at the Data
Source prompt.) Scroll to the desired output unit.
Source prompt.) Scroll to the desired output unit.
e. Press
[F3]
(OK) to confirm your selection.
3. The last set of parameters that appears depends on the
selection you made at the Function prompt.
If you selected Pulse Totalizer:
The prompt asks for the units/pulse, the pulse width (in
microseconds), and the polarity. (Figure 4-20 on page 4-43
illustrates a Digital Output window configured for the Pulse
Totalizer function.) For the Units/Pulse and Pulse Width
parameters:
microseconds), and the polarity. (Figure 4-20 on page 4-43
illustrates a Digital Output window configured for the Pulse
Totalizer function.) For the Units/Pulse and Pulse Width
parameters:
a. Press
[ENTER]
to open the text box.
b. Use the numeric keys to enter the desired value.
c. Press
[ENTER]
to confirm your selection.
For Polarity:
a. Press
[ENTER]
to open the drop-down menu.
b. Scroll to the desired polarity, either Low/High or
High/Low.
c. Press
[ENTER]
to confirm your selection.
If you selected Frequency:
The prompt asks for the minimum and maximum range of
measurements, frequencies and the duty cycle percentage. For
each parameter:
measurements, frequencies and the duty cycle percentage. For
each parameter:
a. Press
[ENTER]
to open the text box.
b. Use the numeric keys to enter the desired value. (Once you
have entered a number, you can use the [
S
] or [T] key to
step through to the desired value.)
c. Press
[ENTER]
to confirm your selection.
d. For the minimum and maximum values, press the [X] key
to move to the box to the right, and repeat the procedure.